Meshfree modelling of magnetotelluric and radiomagnetotelluric data: a new method

大地电磁和无线电大地电磁数据的无网格建模：一种新方法

• 批准号: 239739933
• 负责人: Professor Dr. Bülent Tezkan
• 金额: --
• 依托单位: Institut für Numerische und Angewandte Mathematik (NAM)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/239739933?language=en
• 关键词: Meshfree; modelling; magnetotelluric; radiomagnetotelluric; data

In this project, a new interpretation software for the multidimensional modeling (2D inversion, 3D forward modeling) of magnetotelluric and radiomagnetotelluric data will be developed in contrast to the traditional numerical methods like the finite elements or finite differences. The method for solving the partial differential equation is based on a meshfree technique which avoids a discretization grid. The main goal of this project is to optimize a two-dimensional, meshfree magnetotelluric forward algorithm which was developed in the frame of a master thesis at the University of Cologne. This software will be extended to a 3D forward magnetotelluric modeling algorithm. In addition, the meshfree method will be implemented in a 2D inversion algotihm which will benefit from this new method. The new software will be tested on synthetic and real data sets and will be run-time optimized. In this way, an effective and accurate reconstruction of multidimensional earth resistivity structures will be possible.

在该项目中，将开发一种新的大地电磁和无线电大地电磁数据多维建模（2D反演、3D正演建模）解释软件，与有限元或有限差分等传统数值方法不同。求解偏微分方程的方法基于避免离散网格的无网格技术。该项目的主要目标是优化二维、无网格大地电磁前向算法，该算法是在科隆大学的硕士论文框架内开发的。该软件将扩展到 3D 正向大地电磁建模算法。此外，无网格方法将在二维反演算法中实现，该算法将受益于这种新方法。新软件将在合成数据集和真实数据集上进行测试，并将进行运行时优化。这样，有效、准确地重建多维地球电阻率结构将成为可能。

项目成果

Meshfree magnetotelluric modelling

• DOI: 10.1093/gji/ggu207
• 发表时间: 2014-08
• 期刊: Geophysical Journal International
• 影响因子: 2.8
• 作者: J. Wittke;B. Tezkan